This reliance Joi WiFi router is the best because it has good 4g internet speed and it is working all the devices either it is 3g or more only you should have wi fi connectivity to your device. This Joi fi has unique because you care charge him and you can go on travel also like your smartphone.and one more I want to add that reliance Joi have one more WiFi router but that needs electric connectivity but if you use Joi fi2 you can charge and you can carry it out also.